Delphinium variegatum subsp. thornei

Munz

Aliso 7: 70. 1969.

Common names: Thorne's larkspur Thorne's royal larkspur
Conservation concernEndemic
Treatment appears in FNA Volume 3.

Stem: base sparsely long-pubescent. Inflorescences usually with fewer than 16 flowers per branch. Flowers: sepals bright blue to light blue, lateral sepals 17-21 mm; lower petal blades 6-11 mm.


Phenology: Flowering spring.
Habitat: Grassland, oak woods
Elevation: 0-500 m

Discussion

Of conservation concern.

Delphinium variegatum subsp. thornei has an extremely restricted distribution, is very poorly known, and is imperiled by grazing. Delphinium parryi and D. variegatum subsp. kinkiense are the only other taxa of Delphinium naturally found on San Clemente Island.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

Michael J. Warnock +
usually larger +
not +  and reddish +
long-pubescent +
expanded +
Delphinium series +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
smaller +
subopposite-subalternate +
0.7 cm7 mm <br />0.007 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
linear-lanceolate +
minute +
0 cm0 mm <br />0 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
globose;cylindric +
brick--shaped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Thorne's larkspur +  and Thorne's royal larkspur +
0-500 m +
less smooth;naked +
sessile +  and pedicellate +
showy +  and inconspicuous +
0.9 cm9 mm <br />0.009 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
sessile +  and aggregate +
curved-cylindric +
Grassland, oak woods +
yellow;white +
open +  and (4-)6-17(-20)-flowered +
axillary +  and terminal +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
less ovate +  and elliptic +
1.7 cm17 mm <br />0.017 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
round +  and pentagonal +
whorled +, opposite +  and alternate +
cauline +  and basal +
largest +
lacerate;crenate +
clawed +, 2-lobed +, ovate +  and plane +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
palmate +  and pinnate +
undulate +
smaller +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
long-pubescent +
0.5 cm5 mm <br />0.005 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Flowering spring. +
2-100-flowered +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
3-9(-20)-branched +
8 cm80 mm <br />0.08 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tuberlike +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
succulent +, dry +  and fleshy +
not echinate +
dark-brown +  and black +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not ringed +
rectangular +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
thread-like +
bright blue;light blue +
not persistent +
distinct +
3 +  and 6 +
not +  and veined +
Conservation concern +  and Endemic +
straight +
1 cm10 mm <br />0.01 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
50 cm500 mm <br />0.5 m <br /> (80 cm800 mm <br />0.8 m <br />) +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
persistent +
Delphinium variegatum subsp. thornei +
Delphinium variegatum +
subspecies +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
herbaceous +  and woody +